Upstream Battle: What Is Killing Off the Fraser River’s Sockeye Salmon? [Slide Show]

Gridlocked bridges over the Fraser River are just a part of life for commuting Vancouverites. But the industrialized motif of North America’s longest dam-free river belies a rare natural treasure: a sockeye salmon run with a historical average of eight million fish worth over $1 billion.

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Upstream Battle: What Is Killing Off the Fraser River’s Sockeye Salmon? [Slide Show]